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Finding the Fourth Proportional to 273,731.20, 410,539.20 and 115,964.80

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Solution

The fourth proportional to 273,731.20, 410,539.20 and 115,964.80 is: 173,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,731.20 : 410,539.20 = 115,964.80 : x
  2. Step 2: Convert to fraction form
    273,731.20/410,539.20 = 115,964.80/x
  3. Step 3: Cross multiply
    273,731.20x = 410,539.20 × 115,964.80
  4. Step 4: Simplify right side
    273,731.20x = 47,608,096,220.16
  5. Step 5: Solve for x
    x = 47,608,096,220.16/273,731.20
  6. Step 6: Final answer
    x = 173,922.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.